Simultaneous bidirectional PAM-6 wired link with adaptive pre-emphasis and trellis coding

Author

Hsieh, Ming-ta ; Sobelman, Gerald E.

Author_Institution

Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

1

fYear

2004

fDate

6-9 Dec. 2004

Firstpage

485

Abstract

This work presents a novel design for a simultaneous bidirectional multilevel wireline transmission system with adaptive pre-emphasis and trellis coded modulation. The incorporation of a trellis encoder and a Viterbi decoder provides coding gain to offset the loss of SNR caused by the multilevel pulse amplitude modulation. Furthermore, the feedback loop inherent in a simultaneous bidirectional link provides a natural opportunity to use adaptive pre-emphasis to compensate for channel characteristics. Our simulation results demonstrate the effectiveness of this approach.

Keywords

Viterbi decoding; pulse amplitude modulation; telecommunication links; trellis coded modulation; SNR loss; Trellis coding; Viterbi decoder; adaptive pre-emphasis coding; bidirectional wireline transmission system; code modulation; coding gain; feedback loop; multilevel pulse amplitude modulation; multilevel wireline transmission system; simultaneous bidirectional PAM-6 wired link; simultaneous wireline transmission system; trellis encoder; Bandwidth; Circuits; Decoding; Feedback loop; Modulation coding; Propagation losses; Pulse modulation; Throughput; Viterbi algorithm; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on

Print_ISBN

0-7803-8660-4

Type

conf

DOI

10.1109/APCCAS.2004.1412803

Filename

1412803